We probably know most of them but not all. The real difference might be that they need to reshuffle in importance from time to time. A paradigm shift can bring known-but-minor ones back to the surface, and make new ones appear around them.
We probably know most of them but not all. The real difference might be that they need to reshuffle in importance from time to time. A paradigm shift can bring known-but-minor ones back to the surface, and make new ones appear around them.